Grinding wheel



FIG. 1 is a bottom view of the grinding wheel;

FIG. 2 is a front view of the grinding wheel;

FIG. 3 is a top view of the grinding wheel;

FIG. 4 is a left side view of the grinding wheel;

FIG. 5 is a perspective view of the grinding wheel;

FIG. 6 is a rear view of the grinding wheel;

FIG. 7 is a cross-sectional view of the grinding wheel, taken along line 7—7 as shown in FIG. 3; and,

FIG. 8 is a right side view of the grinding wheel.

The broken line showing of circular features of the grinding wheel in FIGS. 1, 3 and 5 are included for the purpose of illustrating environment and form no part of the claimed design. 

The ornamental design for a grinding wheel, as shown and described. 